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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 430 · 40 questions
TalentJR

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

NameDateTime takenScore ___ / 40
  1. 1.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the tub of water
  2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
  3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
  4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
  5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
  6. 6.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
  7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) the shape of the clay (c) whether it floats (d) the amount of clay
  8. 8.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
  9. 9.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
  10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) yeast
  11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
  12. 12.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  13. 13.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  14. 14.True or false: a pebble sinks in water. (a) True (b) False
  15. 15.True or false: a dry leaf sinks in water. (a) False (b) True
  16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a balloon (d) a battery cell
  17. 17.True or false: an empty capped bottle floats on water. (a) True (b) False
  18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) yeast (d) a balloon
  19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) turmeric powder (d) a tub of water
  20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a magnet (d) a balloon
  21. 21.True or false: a ball of clay sinks in water. (a) False (b) True
  22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a balloon (d) a towel for spills
  23. 23.True or false: a metal key sinks in water. (a) False (b) True
  24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
  25. 25.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a steel spoon (c) an empty capped bottle (d) a cork
  26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) small test objects (d) a tub of water
  27. 27.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
  28. 28.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) a piece of thermocol (d) a steel spoon
  29. 29.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a feather (d) a glass marble
  30. 30.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice-cream stick (c) a dry leaf (d) a coin
  31. 31.True or false: a piece of thermocol sinks in water. (a) True (b) False
  32. 32.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
  34. 34.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
  35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
  36. 36.True or false: a ping-pong ball sinks in water. (a) True (b) False
  37. 37.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
  38. 38.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
  39. 39.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) a piece of thermocol (d) an iron nail
  40. 40.🛟 Does a feather float or sink in water? (a) floats (b) sinks

Answer key

  1. the tub of water
  2. to keep children safe
  3. False
  4. True
  5. it sinks
  6. needed
  7. the shape of the clay
  8. False
  9. sinks
  10. yeast
  11. wipe up spills at once
  12. sinks
  13. not needed
  14. True
  15. False
  16. small test objects
  17. True
  18. a towel for spills
  19. turmeric powder
  20. a tub of water
  21. True
  22. a balloon
  23. True
  24. False
  25. a steel spoon
  26. yeast
  27. floats
  28. a piece of thermocol
  29. a feather
  30. a coin
  31. False
  32. not needed
  33. we keep it the same
  34. lots of salt stirred in
  35. it still floats
  36. False
  37. its hollow shape
  38. True
  39. an iron nail
  40. floats

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